IKO Standard Asphalt Primer is intended for use prior to the application of hot asphalt, some fibrated asphalt coatings, asphalt emulsions, or asphalt adhesives. It is used as a one-coat application when fast drying is needed to accelerate the roof system installation process. IKO Standard Asphalt Primer promotes adhesion and may be used to prime and/or seal gypsum, masonry, metal, wood, concrete, asphalt and other similar substrates.